You can see that the stock market has been more volatile than the earnings and the price of a share is many times higher than the earnings per share.

你可以看到,股票市场波动性大于其收益,每股价格往往是,每股收益的几倍之多

耶鲁公开课 - 金融市场课程节选

There are also the earnings per share.

这里还有"每股收益"

耶鲁公开课 - 金融市场课程节选

What are earnings per share?

每股收益是什么

耶鲁公开课 - 金融市场课程节选